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Topics - fohtohz

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Lenses / Canon 100mm f2.8 L is owners, dust circle inside lens?
« on: May 02, 2012, 01:27:53 AM »
Hi all, I just got a 100L and was looking down the front of the lens through to the rear under a light and noticed what seems to be a weird circle of stain or dust on the inside of the lens(around the edge and 2/3s near back element), was wondering if anyone with the same lens has the same thing.

This lens is supposed to be weather sealed and the stain is not on the back element, so was wondering what it was. Apart from this strange circle, everything functions great, maybe it's a reflection off something. thanks


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